Excellent classical Hebrew - English dictionary
I already owned the Klein, but bought a second copy to donate to my synagogue, so that when I did not understand a word during prayer or Torah reading, I could grab the dictionary. I find it to be superior to others I have used, including the Jastrow, which has tiny print and a myriad of abbreviations. The definitions seem to me to be more accurate (although I state this as a layman, not as an expert), and Hebrew of Tanach, Mishneh, the m'forshim, and even modern-day are all covered.
